Few days ago we were taken to an artificial island called Tokyo Bayoasis, in fact – is’s just stopover between underwater tunnel and bridge – but also perfect shortcut over Tokyo Bay.

Tunnel – 9601 meters long and 60 meters under sea level (real huge ships sail over the tunnel without any problems)

Part of island – as main exhibition they are showing plate which was used for drilling the tunnel:

Scale:

And here efficiency of Japanese coast guard – 3 people were in that small boat, and it looks like it’s forbidden, because guards took all of them on board (i’m not even surprised – large cargo ship wouldn’t even notice them…)